# Water sensor Nous E4 ZigBee 3.0 Smart Home — leak detection sensor, model E4

**URL:** https://aio.lv/en/product--nous-e4--10539049
**Data updated:** 2026-03-11 11:53 (EET)
**Category:** Smart Sensors
**Manufacturer:** Nous
**Manufacturer code:** E4
**EAN:** 5907772033883
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 22.99 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 19.00 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--nous-e4--10539049

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

Nous E4 is a ZigBee 3.0 water/leak detection sensor compatible with smart home systems. Designed to detect standing water or leaks, it reports events over ZigBee for integration with hubs and automation routines. Suitable for placement near sinks, washing machines, boilers or basements to trigger alerts, alarms or automated shutoff actions.

## Long description

Nous E4 ZigBee 3.0 water sensor is a compact leak detection device designed for integration with ZigBee smart home systems. It senses the presence of standing water at floor level and transmits status updates and alarm events to a compatible ZigBee hub. The sensor is intended for locations where leaks may occur—near sinks, washing machines, boilers, water heaters and in basements or utility rooms—and enables automated responses such as notifications, alarms or shutoff actions when connected to a supported smart home controller.
Advantages
The device offers real‑time leak detection over ZigBee 3.0 for reliable communication with a wide range of hubs and controllers. Its compact design allows placement in confined spaces and along baseboards. Low power consumption supports long battery life, and simple integration enables use in automation scenes to trigger alerts or protective actions. The sensor operates without the need for direct wiring, simplifying installation and relocation.
Suitable for
Monitoring under kitchen and bathroom sinks
Placement near washing machines and dishwashers
Protection around boilers and hot water tanks
Basement, crawlspace or utility room leak detection
Integration into home automation scenarios for automatic shutoff or alarm
Key specifications
Communication protocol: ZigBee 3.0 compatible
Detection type: standing water / liquid contact detection
Power supply: battery powered for wireless installation
Form factor: compact sensor housing suitable for floor placement
Integration: reports events and status to compatible ZigBee hubs for automation
How to use
Place the Nous E4 sensor on a level surface where leaks or pooling water are most likely to occur, ensuring the sensing contacts can touch the floor. Pair the sensor with a ZigBee 3.0 compatible hub following the hub’s device inclusion procedure. Once paired, configure alarm notifications and automation rules in the hub or smart home app to receive alerts or trigger actions such as sirens, push notifications or valve shutoff when water is detected. Test the sensor after installation to confirm communication with the hub and correct alarm behavior.
Usage recommendations
Install the sensor on a clean, dry surface and avoid placing it directly on carpets or unstable substrates. Keep the device within the reliable ZigBee network range of your hub and avoid strong sources of radio interference. Periodically test the sensor and replace batteries according to the hub’s battery status reports to ensure continuous protection against leaks.

## FAQ

### How much does the Water Sensor Nous E4 ZigBee 3.0 cost, and is it available for purchase?

The price is 22.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 01.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Nous products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Nous service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/10539049/68522734_large.webp